CVE-2021-43790

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Summary

CVECVE-2021-43790
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-11-30 00:15:00 UTC
Updated2021-12-01 14:48:00 UTC
DescriptionLucet is a native WebAssembly compiler and runtime. There is a bug in the main branch of `lucet-runtime` affecting all versions published to crates.io that allows a use-after-free in an Instance object that could result in memory corruption, data race, or other related issues. This bug was introduced early in the development of Lucet and is present in all releases. As a result of this bug, and dependent on the memory backing for the Instance objects, it is possible to trigger a use-after-free when the Instance is dropped. Users should upgrade to the main branch of the Lucet repository. Lucet no longer provides versioned releases on crates.io. There is no way to remediate this vulnerability without upgrading.

Risk And Classification

Problem Types: CWE-416

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Bytecodealliance Lucet All All All All

References

ReferenceSourceLinkTags
Merge pull request from GHSA-hf79-8hjp-rrvq · bytecodealliance/lucet@7c7757c · GitHub MISC github.com
crates.io/crates/lucet-runtime MISC crates.io
Use After Free in lucet-runtime · Advisory · bytecodealliance/lucet · GitHub CONFIRM github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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